LEM LA P: available from 11 distributors. Explore Sensors on Octopart: the fastest source for datasheets, pricing, specs and availability. Current Transducer LA P. For the electronic measurement of . This datasheet has been downloaded from: Datasheets for. LA55P datasheet, LA55P circuit, LA55P data sheet: LEM – Current Transducer LA P,alldatasheet, datasheet, Datasheet search site for Electronic.
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If this is total consumption for both supply pinscan I except that the transducer is going to draw equally on each supply pin, i. All of these devices work using Hall-effect sensors.
This is represented in the schematic by the X-box. The amplifier runs a current through the coil winding so that the flux in the core sums to zero. This is rather clever as it removes all non-linearities of the core from the performance of the device.
It is never driven into saturation if operated within spec and never leaves zero so there are no hysteresis effects either. The flux cancelling current is fed to the output and will be directly proportional to the primary current.
LA55P Datasheet, PDF – Alldatasheet
You might want to re-phrase the question. The power will be consumed by the transducer and the load RM.
Worst case for the transducer will be la55l maximum current and voltage drop into minimum RM. The datasheet is not very comprehensive so I am guessing a bit. And next to that it will draw I s from the supply “in general”.
If I s flows out of the device it will be drawn from the positive supply and vv.
So the maximum power drawn will consist of two components: Note that this datxsheet the worst case possible, where you continuously measure 50A DC. If you measure sine-shaped or small currents, I s will datxsheet average be smaller, and so the average power will drop.
In that case you will need to find the rms value of the current you measure to determine the average power you will need for driving I s.
Current consumption of a current transducer (LEM LA P) – Electrical Engineering Stack Exchange
Home Questions Tags Users Unanswered. This current transducer has 2 supply pins: Datasjeet Gulin 1 5 What is the total power consumption of the transducer? I suspect you only care about your power budget in which case your analysis is correct. Yes, I only care about the power budget since I need to size a power supply. Thank you for clarifications, this is really helpful! The device itself needs 10mA continuously from both supply rails to work.
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(PDF) LA55P Datasheet download
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